Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-72243 Details

Description

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:8.4 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/11406d0d7e11b4e525bb2ace2c70107031d058da kernel.org
https://git.kernel.org/stable/c/44c74d27d1b9aaa99fa8a83640c1223575262b80 kernel.org
https://git.kernel.org/stable/c/646ebbc5f2ff9147d084e1213143f091026a611c kernel.org
https://git.kernel.org/stable/c/d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3 kernel.org
https://git.kernel.org/stable/c/e507633bf76bccf1a6af27771fb0d6e2862b7eac kernel.org

see all 6 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-72243
NVD Published Date:
Aug 15, 2026
NVD Last Modified:
Aug 18, 2026
Source:
kernel.org
CVE-2026-72243 Details - Not Deferred